I agree with LAWReptiles. Yes, we all know that the standing opinion for proper setup is to have a hide available at both warm and cool ends of the enclosure, but every animal is different. In my own opinion, I think that if you monitor the behavior, feeding habits, and general health of the animal, having the second hide is optional depending on those observations. That being said I currently have 26 balls, but mine are in rack systems with opaque containers that are only about 6 -7 inches deep. But when I first started I did have a couple of setups like him and only used one hide in each. The snakes that were kept in those enclosures I still have today and are my bigest animals. Never had a single health or feeding problem with them.